Because of oil-free screw air compressor screw on the compression process, the whole host of lubrication, sealing and cooling by water, as a result, the letter but oil-free air compressor is oil-free compressed in the true sense. 1) unlubricated structure: the whole machine has no oil to participate in, and the lubricant we use is water, so it can provide users with very clean compressed air.Operation and maintenance costs are extremely low (no air compressor oil, oil fine separation core, oil filter). 2) ideal isothermal compression: because the water cooling performance is far higher than that of air compressor oil, we only 40 ℃, the machine running temperature close to the suction temperature, achieve ideal isothermal compression efficiency. 3) real environmental protection products: because there is no lubricating oil, there is no oil pollution, and all the parts are made of anti-rust materials, such as stainless steel, copper alloy, ceramic and carbon fiber, etc.High precision water filter ensures that the water is kept clean. 4) high efficiency: the pure water used by the BEST-F(N) series air compressor has three functions: sealing, cooling, and lubrication, which is 20% higher than the normal dry compressor.